Do You Prefer Water Cold or at Room Temperature?

In Aspen, where the altitude is high, the climate is dry, and the June temperatures can crawl into the 90s, one must hydrate or perish. We tried, therefore, to drink at least 10 bottles of water a day. In that process, PartySugar and I discovered we have differing drinking habits: while she reaches for room temperature water ("It goes down faster!" she explained), I always went for the ice cold kind. What's your preference?